2.1.80 — Claude code - Product release notes & changelog tool

Added rate_limits field to statusline scripts for displaying Claude.ai rate limit usage (5-hour and 7-day windows with used_percentage and resets_at)
Added source: 'settings' plugin marketplace source — declare plugin entries inline in settings.json
Added CLI tool usage detection to plugin tips, in addition to file pattern matching
Added effort frontmatter support for skills and slash commands to override the model effort level when invoked
Added --channels (research preview) — allow MCP servers to push messages into your session
Fixed --resume dropping parallel tool results — sessions with parallel tool calls now restore all tool_use/tool_result pairs instead of showing [Tool result missing] placeholders
Fixed voice mode WebSocket failures caused by Cloudflare bot detection on non-browser TLS fingerprints
Fixed 400 errors when using fine-grained tool streaming through API proxies, Bedrock, or Vertex
Fixed /remote-control appearing for gateway and third-party provider deployments where it cannot function
Fixed /sandbox tab switching not responding to Tab or arrow keys
Improved responsiveness of @ file autocomplete in large git repositories
Improved /effort to show what auto currently resolves to, matching the status bar indicator
Improved /permissions — Tab and arrow keys now switch tabs from within a list
Improved background tasks panel — left arrow now closes from the list view
Simplified plugin install tips to use a single /plugin install command instead of a two-step flow
Reduced memory usage on startup in large repositories (~80 MB saved on 250k-file repos)
Fixed managed settings (enabledPlugins, permissions.defaultMode, policy-set env vars) not being applied at startup when remote-settings.json was cached from a prior session